yes this has something to do with firmware especially beta + m1 note is having this issue not all but some , seems like the display is either undervolted or overvolted in the beta’s causing this , i suggest going to service centre asap
(TouchWood)

I don’t think there is a problem with the phone. the previous version was no problem.@viper
Now install any version it will persist most probably,
See what I’m saying is that the software issue seems to be causing hardware issue and I’ve seen many cases 4 of em installed beta version after which they had this issue.
Even my cousin is having this issue some apps work okay whereas so flicker like that

Does anyone know if there is any work around for this notification issue. Maybe some app I can install so that I can get whats app messages when in stand by. 90 % of my usage of the phone is Whatsapp so I kinda want it to work It doesn’t appear that the dev team see this as any kind of a priority. Its been doing this since I upgraded from Kitkat to lollipop, people have been complaining all along. None of the beta releases have fixed it. I have White listed it and done all the other steps. I have even Factory reset my phone a bunch of times(which isn’t a fun job). I am overly happy with the phone and the amount of updates. Flyme is hands down the best mobile OS I have used. The only issue I have is this and the removal of DiracHD from the music app options(Makes 0 sense why they haven’t just added it back in after people have complained)

The good: great battery imporvement with respect to previous versions. Everything but the keyboard is very fluid.

Th bad: - notifications delay, even allowing google framework
- Sound is sometimes “craked” when play something
- Still miss hotspot icon in quick settings at the notification bar, I did have it in flyme 4.02, and loved it.